Inside this type of gasoline filter, the folded filter paper is connected to the two ends of the plastic or metal filter. After the filthy oil enters, it is filtered by the outer wall of the filter through layers of filter paper to reach the center, and clean fuel flows out.

Unlike the linear gasoline filter, its filter paper is wrapped on the center tube. After the dirty oil enters, it flows out after being directly filtered by filter paper. The foreign particles are trapped in the groove of the filter paper. This gasoline filter has better performance and is used in middle and high-end cars.

There are mainly two types: sea spiral filter paper gasoline filter and linear filter paper gasoline filter.

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